/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.hadoop.mapred.join;

import java.io.IOException;

import org.apache.hadoop.mapred.InputFormat;
import org.apache.hadoop.mapred.InputSplit;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.JobConfigurable;
import org.apache.hadoop.mapred.RecordReader;
import org.apache.hadoop.mapred.Reporter;

public class ConfigurableInputFormat implements InputFormat, JobConfigurable {
  boolean configured = false;

  public ConfigurableInputFormat() { }

  public void configure(JobConf job) {
    configured = true;
  }
  public void validateInput(JobConf job) throws IOException {
    if (!configured)
      throw new IOException("Failed to configure child InputFormat");
  }

  public InputSplit[] getSplits(JobConf job, int numSplits)
      throws IOException {
    return null;
  }

  public RecordReader getRecordReader(
      InputSplit split, JobConf job, Reporter reporter) throws IOException {
    return null;
  }
}
